import {z} from 'zod'

export type FiscalAutomaticMonthDefinition = {type?: 'automatic' | undefined};

export type FiscalCatchUpMonth = {fiscal_year_number: number, fiscal_month_number: number};

export type FiscalWeekPatternMonthDefinition = {type?: 'week_pattern' | undefined, pattern: 'four_four_five' | 'four_five_four' | 'five_four_four', catch_up_months?: Array<FiscalCatchUpMonth> | undefined};

export type StructuredFiscalCalendarConfiguration = {timezone: string, fiscal_year_number: number, fiscal_year_start_date: string, month_definition: FiscalAutomaticMonthDefinition | FiscalWeekPatternMonthDefinition};

export type StructuredFiscalCalendarPreview = {configuration_mode: 'structured', configuration: StructuredFiscalCalendarConfiguration, fiscal_year_number: number};

export type FiscalQuarter = {fiscal_quarter_number: number, start_date: string, end_date: string};

export type FiscalMonth = {fiscal_month_number: number, label: string, start_date: string, end_date: string, is_catch_up_month?: boolean | undefined};

export type FiscalYear = {fiscal_year_number: number, start_date: string, end_date: string, quarters: Array<FiscalQuarter>, months: Array<FiscalMonth>};

export type JsonFiscalCalendarConfiguration = {timezone: string, week_start_day: 'monday' | 'tuesday' | 'wednesday' | 'thursday' | 'friday' | 'saturday' | 'sunday', fiscal_years: Array<FiscalYear>};

export type JsonFiscalCalendarPreview = {configuration_mode: 'json', configuration: JsonFiscalCalendarConfiguration, fiscal_year_number: number};

export type CreateApiTokenomicsV1FiscalCalendarPreviewArgs = {body: StructuredFiscalCalendarPreview | JsonFiscalCalendarPreview};

export type CreateApiTokenomicsV1FiscalCalendarPreviewOptions = {baseUrl?: string | undefined, APIKeyHeader?: string | undefined, fetch?: typeof fetch | undefined};

export const fiscalQuarter = z.object({fiscal_quarter_number: z.number().int().gte(1).lte(4), start_date: z.string(), end_date: z.string()});

export const fiscalMonth = z.object({fiscal_month_number: z.number().int().gte(1).lte(12), label: z.string().min(1).max(32), start_date: z.string(), end_date: z.string(), is_catch_up_month: z.boolean().optional()});

export const fiscalYear = z.object({fiscal_year_number: z.number().int().gte(1).lte(9999), start_date: z.string(), end_date: z.string(), quarters: z.array(fiscalQuarter), months: z.array(fiscalMonth)});

export const jsonFiscalCalendarConfiguration = z.object({timezone: z.string().min(1).max(64), week_start_day: z.enum(["monday", "tuesday", "wednesday", "thursday", "friday", "saturday", "sunday"]), fiscal_years: z.array(fiscalYear)});

export const fiscalCalendarPreviewResponse = z.object({resolved_calendar: fiscalYear.nullable(), generated_json: jsonFiscalCalendarConfiguration.nullable()});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Preview Fiscal Calendar
 * 
 * POST /tokenomics/v1/fiscal-calendar/preview
 * 
 * Also accepts auth: ClassicAPIKeyHeader, OAuth2PasswordBearer, HTTPBasic
 */
export const createApiTokenomicsV1FiscalCalendarPreview = async (args: CreateApiTokenomicsV1FiscalCalendarPreviewArgs, options?: CreateApiTokenomicsV1FiscalCalendarPreviewOptions) => {
const {baseUrl = "https://api.galileo.ai", fetch: fetchFn = fetch, APIKeyHeader} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('content-type', "application/json")
headers.set('accept', "application/json")

if (APIKeyHeader !== undefined) headers.set("Splunk-AO-API-Key", APIKeyHeader)

const url = `${baseUrl.replace(/\/+$/, '')}/tokenomics/v1/fiscal-calendar/preview${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(fiscalCalendarPreviewResponse, await res.json())
};